Evolution of Trial: Gene Flow Take the Stand

April 1, 2012

Since the Supreme court was in the news recently with ObamaCare I figured I would use the analogy with the next few posts on Evolution and show how the evidence and facts don’t make good witnesses in a case defending Evolution.  The first witness that we will put on the stand will be Gene Flow.

Gene flow is the transfer of genetic material between separate populations. Many organisms are divided into separate populations that have restricted contact with each other, possibly leading to reproductive isolation. Many things can fragment a species into a collection of isolated populations. For example, a treacherous mountain pass may cut off one herd of mountain goats from another. 1  Gene Flow is a process that describes how the genes are keep local or spread from different plants and animals of the same family.

Gene Flow is often refered to in the human population and see by very easily in America especially in the large metropolitan areas where there is a highly diverse population of people from different areas of the world.  You can see the beautiful combinations of skin colors from the different people who get married and have children.

For example if a missionary’s family were to move to a remote location in a different part of the world and their family slowly is mixed through generations into the local population.  You might see skin color changes, height and weight changes, facial features or other features of the local population.  The same can be said of other plants and animals that would be closed off from others.  If Gene Flow is restricted you will see a population become less and less diverse because the amount of available information from the total Gene Pool is mixed in with the smaller population.   The Gene Pool just represents the total number of possible alleles (pairs of genes) for that particular chromosome within a family or species.

The human Gene Pool contains a massive 40,000 different varieties of genes that can be mixed in many different combinations within the 46 chromosomes we have.  If this is confusing to you, I suggest getting a deeper look at Gene Flow and the other terms online or in a simple biology book.   I will be looking at genes and the science over the next few posts.

Now that we have a basic knowledge of Gene Flow and the Gene Pool lets look at why it makes a poor witness on the stand defending evolution.  No matter how much the gene’s “flow” it will not ever produce new genetic material.  In the above examples with goats and humans, in all the cases the goats are still goats, and the people still people.  This all fits into the umbrella of micro-evolution or adaption.  There are no invertebrates that become vertebrates, or amphibians that become reptiles.  Gene Flow of this type has never been seen or accomplished with a lab.  The DNA will not allow it.

What about Hybrids?  Someone might respond with the examples of the Liger (Lion and Tiger) or another type of hybrid.   These type of examples of Gene Flow are so rare that they do not affect the total population of a genus and do not survive in the world without human intervention by care in a zoo.  There are no known hybrids between different genuses, only between sub-species like a  Bengal tiger and Siberian tiger.  A hybrid of goat and sheep for example that are closely related, but when they mate the children are usually still-born and if they survive they are always infertile. 2   People have experimented with different types of hybrids in the labs, but when left in the wild the animals do not choose to mingle.  These hybrids would fall more into the area of mutations and we will look at that witness on the stand in an upcoming post.

One possible rebuttal that someone might give you defending evolution is that “given enough time over millions and millions of years these little changes add up to changes in genuses and new genetic material is born.”  This is false, because if no new genetic material can from within a short-term, then the same is expected with the long-term.  Time is a distraction here and has nothing to do with the process of Gene Flow and Genetic Drift.

For example: 0+0+0+0 = 0 and at the same time 0+0+0+0+0+0+0+0+0+0+0+0+0+0+0+0+0+0+0 = 0

According to Genesis 1:24 “And God said, “Let the land produce living creatures according to their kinds: the livestock, the creatures that move along the ground, and the wild animals, each according to its kind.” And it was so. “  God created the animals separately.  I realize that we can’t view the creation story just like we can’t observe evolution in the past, but according to the evidence we do have about plant and animal life now, you have to honestly ask yourself what does the evidence we do have now support?  We will cover creation in later blogs.  As always questions, comments, and discussions are welcome.


1 – http://www.answers.com/topic/gene-flow#ixzz1pcMgvfea

2. – http://www.answers.com/topic/sheep-goat-hybrid

3.  – Sherrod, Chris; Faith, Fact, and Reason: Study #5 The Flaws of Evolution pgs. 75-76

My Dog Has a Facebook

January 25, 2010

Ginger Weldon's Facebook

Yes, it’s true.  I had some extra time this afternoon after I got off work and what did I do with my extra 45 minutes, I created a Facebook for my dog.  It’s a big joke of course and I’m going to delete it soon.   I just thought it would add a little laugh to your day, some of you anyway. 

BUT, while we are on the subject, I was made aware that Facebook is getting younger and younger.  The social networking site was created for college students and has moved down into high school years back.   Legally you have to be 13 years old to have a Facebook, but that doesn’t stop anyone who wants to create an account.  All you have to do is lie about your birth year and you are in.   Even recently I have been made aware of some elementary school students who have a Facebook.  I think that is too young.

Many of the middle schoolers in our youth group have one or the other more immature Myspace.    I say that, because if you have both, which I do, you can tell a difference in the two by simply looking at the posts from friends.  I added a MySpace years back because it was a way to communicate with the students I work with.   Little did I know it would become a tool that would open my eyes to things unseen a church.  I had to learn how to deal with the things I saw.   I’ll admit I didn’t handle them well at first, micromanaging their every little blog and post.  Now, I try to use those times as teachable moments for the students I pastor and lead.  Some take it well, while others don’t.  As the popularity of Facebook grows, more and more of the Myspace friends cross over to Facebook, I am about convinced that I’m ready to delete the MySpace account anyway.

A recent report put out by Kaiser Family Foundation just in the last week has shown where on average students are spending more time on media than 5 years ago when the study first ran.  You can look at the full report here and download (http://learningmylines.blogspot.com/2010/01/finally-latest-on-kids-and-media.html) a brief summary of it from Walt Mueller, who I consider to be one of the leading people in youth culture today.   You could branch off with several discussions from this article, so if you have something to add please feel free to leave some comments.  I just think we need to draw up some borders with respect to media use and limit the age of those who use it.  As a parent,  I make sure that I have rules in place before the issues ever come up so that I know how to answer the questions and comments posed by my children.  What ever happened to playing on the playground?

Well in conclusion, you can either add my dog to your Facebook page or not I don’t care.  She already has 7 friends now and a few pictures.